Treaties and other international acts series. 1701. Reciprocal trade, agreement and accompanying letters between United States and Belgo-Luxemburg Economic Union, rendering inoperative agreement of Feb. 27, 1935 and supplementing general agreement on tariffs and trade of Oct. 30, 1947; signed Geneva Oct. 30, 1947, entered into force Oct. 30, 1947, effective Jan. 1, 1948.